Diet Overlap

Aegolius acadicus (Northern Saw-whet Owl)
Mustela erminea (Ermine)

Common Diet

Microtus montanus (montane vole)
Myodes californicus (western red-backed vole)

Common Habitat

Acadia National Park
Alaska-St. Elias Range tundra
Alberta Mountain forests
Alberta-British Columbia foothills forests
Allegheny Highlands forests
Appalachian mixed mesophytic forests
Appalachian-Blue Ridge forests
Atlantic coastal pine barrens
Bandelier National Monument
Banff National Park
Blue Mountains forests
British Columbia mainland coastal forests
Bruce Peninsula National Park
California Central Valley grasslands
California Coast Ranges Biosphere Reserve
California Floristic Province
California interior chaparral and woodlands
Canadian Aspen forests and parklands
Cape Breton Highlands National Park
Cascade Mountains leeward forests
Cedar Creek LTER Site
Central and Southern Cascades forests
Central British Columbia Mountain forests
Central Canadian Shield forests
Central Pacific coastal forests
Central Plains Biosphere Reserve
Central tall grasslands
Champlain-Adirondack Biosphere Reserve
Colorado Plateau shrublands
Colorado Rockies forests
Coram Biosphere Reserve
Eastern Canadian Shield taiga
Eastern Cascades forests
Eastern forest-boreal transition
Eastern Great Lakes lowland forests
Elk Island National Park
Fathom Five National Marine Park
Fraser Biosphere Reserve
Fraser Plateau and Basin complex
Fundy National Park
Georgian Bay Islands National Park
Glacier National Park
Great Basin montane forests
Great Basin National Park
Great Basin shrub steppe
Gulf of St. Lawrence lowland forests
Gwaii Haanas National Park Reserve
H.J. Andrews Biosphere Reserve
Heath and Marjorie Angelo Coast Range Preserve
Jasper National Park
Kejimkujik National Park
Klamath-Siskiyou forests
Kootenay National Park
Kouchibouguac National Park
La Mauricie National Park
Lake Superior Provincial Park
Lassen Volcanic National Park
Middle Atlantic coastal forests
Midwestern Canadian Shield forests
Montana Valley and Foothill grasslands
Mount Rainier National Park
Mount Revelstoke National Park
New England-Acadian forests
Niagara Escarpment Biosphere Reserve
North America
North Central Rockies forests
Northeastern coastal forests
Northern California coastal forests
Northern mixed grasslands
Northern Pacific coastal forests
Northern short grasslands
Northern tall grasslands
Northern transitional alpine forests
Okanagan dry forests
Olympic Biosphere Reserve
Oregon Caves National Monument
Pacific Coastal Mountain icefields and tundra
Pacific Rim National Park Reserve
Palouse grasslands
Point Pelee National Park
Point Reyes National Seashore
Prince Albert National Park
Prince Edward Island National Park
Puget lowland forests
Pukaskwa National Park
Queen Charlotte Islands
Redwood National Park
Riding Mountain Biosphere Reserve
Rocky Mountain Biosphere Reserve
Rondeau Provincial Park
Saint Lawrence Islands National Park
Sequoia and Kings Canyon Biosphere Reserve
Sierra Nevada forests
Sleeping Bear Dunes National Lakeshore
Snake-Columbia shrub steppe
South Central Rockies forests
Southern Great Lakes forests
Southern Hudson Bay taiga
Southwest Nova Biosphere Reserve
Upper Midwest forest-savanna transition
Voyageurs National Park
Wasatch and Uinta montane forests
Waterton Biosphere Reserve
Western Great Lakes forests
Western short grasslands
Whiskey-Shasta-Trinity National Recreation Area
Willamette Valley forests
Wyoming Basin shrub steppe
Yellowstone Biosphere Reserve
Yosemite National Park
Zion National Park

Attributes / relations provided by
♦ 1DIETS OF NORTHERN PYGMY-OWLS AND NORTHERN SAW-WHET OWLS IN WEST-CENTRAL MONTANA, DENVER W. HOLT AND LESLIE A. LEROUX, Wilson Bull., 108(1), 1996, pp. 123-128
♦ 2Microtus montanus, Wendy E. Sera and Cathleen N. Early, MAMMALIAN SPECIES No. 716, pp. 1–10 (2003)
♦ 3Clethrionomys californicus, Lois F. Alexander and B. J. Verts, MAMMALIAN SPECIES No. 406, pp. 1-6 (1992)